installing ndbd as a Windows Service, twice (no replies)

I'm trying to install MySQL Cluster as a windows Service. This is only on a single server for the minute,as it just proof of concept / practice before I install it for real.

But, there is a problem installing multiple data Nodes as a service.

I run the command:

c:\mysqlD1\bin\ndbmtd.exe --install ndbmtd1

and this is fine, but when I then try to run:

c:\mysqlD2\bin\ndbmtd.exe --install ndbmtd2

I get the error,
"Installing Service 'MySQL dat Node Daemon' as '"c:\mysqld2\bin\ndbmtd.exe" "--service=ndbd" "ndbmtd2'"
The Service already exists!
The current server installed: c:|mysqld1\bin\ndbmtd.exe" "--service=ndbd" "ndbmtd1"

Is there a reason why I can't install it as two services, it is pointing at two distinct files.